CODEWITHSUNDEEP
rustpackage-managersrust-cargo
Filip Allberg
Filip Allberg

Reputation: 5171

Is there a command to update Cargo to the latest official release?

I seem to have diverging versions of rustc and cargo (I think), 

$ rustc -V
rustc 1.9.0 (e4e8b6668 2016-05-18)
$ cargo -V
cargo 0.10.0-nightly (10ddd7d 2016-04-08)

Is there a command akin to 

pip install --upgrade pip

for upgrading cargo? I.e. something like

cargo install --upgrade cargo

Upvotes: 295

Views: 238891

Answers (7)

Sam Bacha
Sam Bacha

Reputation: 119

If you are using macOS, you may have different cargo installs in your $PATH

Not Managed by rustup

which cargo
/opt/local/bin/cargo

Managed by rustup

$ which cargo
/Users/$(whoami)/.cargo/bin/cargo

You should remove the following cargo or alt. rework your $PATH in your ~/.bash_profile[ref] so that the one managed by rustup takes precedence.

[ref]: on macOS, .bash_profile is the one that is loaded as macOS loads an interactive shell.

Upvotes: 1

TimD1
TimD1

Reputation: 1032

If you are currently in a Rust project, be sure to check that there is not a rust-toolchain.toml file present that specifies a certain Rust version:

[toolchain]
channel = "1.65.0"
components = ["rustfmt", "clippy"]

As a new Rust developer, I didn't know to look for this. None of the above solutions worked for me, including re-installing Rust from scratch. I just needed to update this file, which will force cargo and rustc to use this version.

Upvotes: 1

Troy B.
Troy B.

Reputation: 99

You can edit the version of cargo and rust you're using by using the rustup cli. You can give it a specific version or specify a channel like nightly or beta.

For example:

rustup override set nightly

..and then run rustup update.

Upvotes: 7

Thomas Bratt
Thomas Bratt

Reputation: 51764

tl;dr command rustup update will update both Rust and Cargo:

$ rustc --version
rustc 1.27.2 (58cc626de 2018-07-18)
$ cargo --version
cargo 1.27.0 (1e95190e5 2018-05-27)

$ rustup update stable
info: syncing channel updates for 'stable-x86_64-unknown-linux-gnu'
info: latest update on 2018-08-02, rust version 1.28.0 (9634041f0 2018-07-30)
info: downloading component 'rustc'
info: downloading component 'rust-std'
info: downloading component 'cargo'
info: downloading component 'rust-docs'
info: removing component 'rustc'
info: removing component 'rust-std'
info: removing component 'cargo'
info: removing component 'rust-docs'
info: installing component 'rustc'
info: installing component 'rust-std'
info: installing component 'cargo'
info: installing component 'rust-docs'

$ rustc --version
rustc 1.28.0 (9634041f0 2018-07-30)
$ cargo --version
cargo 1.28.0 (96a2c7d16 2018-07-13)

Upvotes: 393

Romek Cieciak
Romek Cieciak

Reputation: 195

Use cargo to update itself:

cargo install cargo --force

This recompiles the package and installs the latest version.

I decided to post this after seeing that rustup didn't update cargo to 1.57

Upvotes: 17

Pahlevi Fikri Auliya
Pahlevi Fikri Auliya

Reputation: 4517

You also need to change the default:

> rustc --version
rustc 1.41.0 (5e1a79984 2020-01-27)

> rustup update stable

> rustc --version
rustc 1.41.0 (5e1a79984 2020-01-27)

> rustup default stable-x86_64-apple-darwin

> rustc --version
rustc 1.47.0 (18bf6b4f0 2020-10-07)

Upvotes: 43

Shepmaster
Shepmaster

Reputation: 430564

You should update rustc and cargo based on how you installed it. If you used rustup, a rustup update should suffice. If you used a package manager or a binary installer, check those sources for an update.

rustc and cargo are shipped together, but that doesn't mean that their versions need to match. In fact, they do not match until Rust 1.26.0, when the Cargo binary was changed to print the Rust version.

I have the same versions of rustc and cargo that you do; those are the ones that correspond to the Rust 1.9 release. There's nothing to worry about.

If you really want to, you can download a nightly version of Cargo or compile your own. As long as your version exists in your PATH before the older one, it will be used.

I used to do this with my local Rust builds in order to have a version of Cargo at all, although rustup now automatically uses the cargo from the most recent stable version when there isn't one available in the current toolchain, which is nice.

Upvotes: 312

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